As you can see above, it's been a great day for us and here's a nice image of KSP on the front page of Steam. Besides this, I wanted to take a moment and share all these wonderful links about KSP and the other games taking part in Steam's "Early Access" program.
We can't thank all of you enough for the support you given us over the last year. This wouldn't be possible with out you! -Team KSP